Journal-jack.



W. 0. PARSONS.

JOURNAL JACK.

APPLICATION FILED JUNE 17, 1914.

l,132,1 14 Patented Mar. 16, 1915.

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NEW/w77@ @uw 'A ik 1g @C WILLIAM O. PARSONS, OF INDIANAPOLIS, INDIANA.

JOURNAL-JACK.

Specication of Letters Patent.

Patented Mar. 16, 1915.

Application filed June 17, 1914. Serial No. 845,611.

T0 all whom t may concern Be it known that I, l/ViLLrAM 0. PARSONS, acitizen of the United States, residing at Indianapolis, in the county ofMarion and State of lndiana, have invented certain new and usefulImprovements in Journal-Jacks, of which the following is aspecification. a

This invention relates to journal jacks for lifting the journal boxes ofcar wheels during the process of removing the brasses theretrom, andmore particularly relates to an improved means for maintaining the jackpawl at any desired angular relation with the jack base in such positionas to positivelyr engage the wheel flange for maintaining the wheel uponthe rail while jacking up the journal boX.

One of the principal objects of the invention is to provide an improvedwedge or block inseparably connected with the jack and adapted to coactwith the jack base and pawl for positively holding the latter inengagement with the wheel flange, and further adapted to provide a solidbacking between the pawl and jack to form a medium for the thrustoccurring incident to the jacking process.

Another object of the invention is to provide a device of the classdescribed including a substantially arcuate wedge having a toothedsurface adapted to coact with the toothed bearing portion of the jackpawl in positioning the wedOe relatively to the pawl and jack base formaintaining the former in adjusted position in contact with the wheelflange. j

A further object is to provide in combination with a jack having apivoted pawl, a toothed wedge adapted to maintain the pawl in adjustedposition, the Wedge being provided with means, in the form of aretaining ring surrounding the pivot pin, for preventing accidental lossof the wedge and adapted to always maintain the latter in accessibleposition to the person operating the jack.

Still another object of the invention is to provide a. device of thetype specified, which will be extremely simple, durable, ellicient inoperation and inexpensive to manufacture.

VVith these and other objects in view, which will become apparent as thedescription proceeds, the invention resides in the construction,combination, and arrangement of parts hereinafter more fully describedand claimed, and illustrated inthe accompanying drawing, in which likecharacters of reference indicate like parts through the several figures,of which,

Figure 1 represents a side elevation view, partly in section, of a jackconstructed according to my invention, illustrating the same inoperation. Fig. 2 represents a top plan view thereof, partly in section.Fig. 3 represents a perspective view of the wedge, turned upside down,and F ig. 4 represents a transverse sectional view taken through thepawl, on the plane indicated bv the line 4%- Of rig. a.

.Referring more particularly to the drawing, the jack includes the base5 carrying the ack screw 6 having a corrugated head 7 adapted to engagebeneath the journal box of a car for lifting the same, the jack screwbeing operable by the usual form of pawlv and ratchet mechanismindicated generally at 8.

Base 5 is provided with an upper beaded edge 9 beveled for a portion ofits circumference as at 10, and adjacent the beveled portion anddisposed one on each side thereof on the opposite side of the jack fromthe handle 11 is a pair of parallel ears or lugs 12.

The pawl 13 is substantially wedge shaped, curving downwardly toward itsouter end or nose portion 14, and is substantially in the form of an Ibeam in cross section as indicated in Fig. 4, and at its rear end isbifurcated to provide spaced ears 15 adapted to be positioned between,and to be swiveled to the ears in a manner to allow vertical adjustmentof the pawl, by a pivot pin 16 disposed centrally of ears 12 and 15. Theouter edge of the pawl ears are rounded as at 17, and on their upperperiphery adjacent the jack are provided with transversely disposedteeth 18.

rlhe wedge 19 is substantially arcuate in i formation and tapers towardits nose 20 and is of a longitudinal curvature substantially equal tothe curvature of the pawl ears, and is provided with a preferablyintegral retaining ring 21 depending centrally from its under surfaceand disposed in a place coincident with the longitudinal medial line ofthe wedge, said ring being connected to the wedge by a short shank 22.The ring is of a greater inside diameter than the diameter of pin 16,and through said ring the pin is adapted to be extended, in assemblingthe device, whereby the wedge will always be retained in an accessiblepo-V sition to the operator. rIlie under face of the Vwedge at itscentral Aposition and on each side of the shank 22 is provided withtransversely disposed teeth 23 adapted to engage with the teeth 18 oneach pawl ear, in maintaining the wedge in any adjusted positionrelatively to the pawl. A finger hold in the form of an eye 24 extendsfrom the base end of the wedge, and serves as means for the ready1manipulation of the wedge.

By reason of the loose connection between the wedge and pawl, the formermay read-V ily .be lifted .out of engagement with the pawl ears duringthe process of adjusting the pawl, and may be'swung towardy the jackbase into engagement with the beveled portion 10 of the jack and thenengaged with the teeth on the pawl ears, and when in this position, aswill readily be understood, will positively maintain the pawl inengagementv with the wheel flange in the manner'indicated in thedrawing, and will prevent-up-` ward movement of the pawl relatively tothe jack'during the process of jacking up thefhot box, and henceresulting in the maintenance of the car wheel on the rail so that the-boX may be lifted sufficiently to allow the loosening and removal ofthe brasses.

'Although I have describedthe preferred Y embodiment of my invention, Imay desire to Y make such changes in the construction combinati'on,`andarrangement of parts-thereof,

as 'do not depart from the spirit lof the inprising a jack having abeveled portion on its base, spaced ears provided on the jack, a pawlhaving spaced ears on its rear end, the pawl 'ears being disposedbetween the jack years, a pivot pin extending through the ears forpivoting the pawl relatively to the jack,

said pa-wl ears being rounded and providedV Y with transversely disposedteeth, a wedge versely disposed teeth provided on its under j having aring depend-ing centrally from its vunder face and loosely surroundingthe pivot pin, said wedge being of a longitudinal curvaturevsubstantial-ly equal to the curvature of the pawl ears, said wedgehaving trans- Copiesof this patent may 'ne obtained for carried by thewedge.

insanal ,face and adapted to coact with the teeth on with and betweenthe toothed portion ofthe pawl and the beveled portion of the jack, Y

said Wedge provided with teeth adapted to coact with the toothed portionof the Ypawl whereby to maintain the pawl in ,adjusted positionrelatively to the jack. Y

3. A device of the class described, comprising'a jack having'a pawladjlustably con nected therewith,y a wedge adjustably con' nected withthe pawl and adapted to vbe positioned betweenthe pawl and jack, andcoacting interlocking means between the'wedgev and pawlV for maintainingthe former in adjusted position relatively to the latter.

2i. The combination with a jack having an adjustable pawl, ofawedge,means for irremovably and adjustably connecting the' wedge andpawl, and coacting interlocking v means for maintaining the former iiiad-H justed position relatively to the latter.

5. A devicekof the cla-ss described including a wedge, said wedge beingprovided with i a retaining ring extending froinone side thereof, andbeing fur-ther provided with*V teeth on one side thereof,and afinger-hold 6. A device of the class ing a, pa'wl, a jack, a pin forpivoting the p'awl relatively to the jack, a wed'geaadapted to beinterlocked between the pa-wl and jack, andl a ring carried bythe wedgeandloosely surrounding the pin. Y

In testimony whereof in presence'of twowitnesses.V ,Y

WILLIAM O. PARSONS.

Vitne'sses: 'Y

^ VINCENT IIUFF,

IVALTERVL. HiiiNRiCHs.

described, 'include I afiix my signature V ve cents each, by addressingthe Commissioner 'olif lDatentiuV Washington, D. C. v Y.

